Refering to an after affect of a substance, usually a drugs or alchol, that leave you in an altered, but sublime, state.
Girl 1: Girl last night, I has some green and was on my ass, I was so fucked up. That shit was some fire. I'm tryna get some yeah again, tonight.
by PG Dee (yeah that's it) December 02, 2005
Get the on my ass mug.